Fix to eliminate iconv for android (and other unix-es)

[rlebeau]

Please, find attached file with bugs fixed. Now it works.

I have made further tweaks.  See attached, as well as checked in to a GitHub branch.  I suggest you work from that branch from now on, you are getting out of sync with Indy's main code.

I am no expecting the problems under android, if then function "SetSrting" terminates the string with #0 and string length will be OK.
But I will test tonight just in case.

Yes, SetString() guarantees the output string is null-terminated properly.